sievier



2 Sheets-Sheet 1, R. W. SIEVIER.

Apparatus for Exhausting Atmospheric Air or Gases.

Patented July 17, 1860.

2 Sheets-Sheet 2.

R. W. SIEVIER Apparatus for Exhausting Atmospheric Air or Gases.

No. 29,226. Patented July 17, 1860.

TWJ6,

W i w UNIT $TS ROBERT WILLIAM SIEVIER, OF UPPER HALLO\VAY, ENGLAND,ASSJGNOR TO \VILLIAM LILLEY.

APPARATUS FOR EXI-IAUSTING ATMOSPHERIC AIR OR GASES.

Specification of Letters Patent No. 29,226, dated July 17, 1860.

To all whom it may concern:

Be it known that I, ROBERT \VILLIAM SIEWIER, of Upper Halloway, in thecounty of Middlesex, England, and Fellow of the Royal Society, and nowsojourning in the city of Hambur Germany, have invented certainimprovements in the method of exhausting atmospheric air and gases fromany place where such atmospheric air and gases may require to be removedfor the purposes of health or creating a draft for any purpose; and I dohereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings and to theletters of reference marked thereon.

My improvement consists in removing atmospheric air or gases from anysituation they may be inconvenient or where it is necessary to removethem for a useful'purpose and for supplying the place with fresh air orany other gases. For instance suppose the foul air of mines requiresremoval I do not act upon them by forcing pure air into the mine but bythe removal of the obnoxious gases and the pure air supplies its place.Should I desire to create what is called a draft in chimneys and forwhich high chimneys are built, I am enabled by a simple contrivanee toexhaust the gases and convey them to a point desirable and at the sametime to do away with the expense incurred in building high chimneys; insteamboats by causing a powerful draft very inferior coals may be used,and steam also may be more rapidly generated; buildings can be easilyventilated and sewers of large towns may be prevented from beingobnoxious; holds of ships can be ventilated and the difficulty andexcessive heat encountered by stokers of steamers at once removed.

In the accompanying sheet of diagrams will be seen the mode I adopt forcarrying out the above.

Figure 1, represents the upper part of a chimney. Suppose it is formanufacturing when a high chimney is required, I do not require achimney of more than a few feet high. a, a, a, a, represents a plateiron shell which is placed at the upper part of the chimney, (care mustbe taken to make the whole of the flue and chimney air tight). Z) is atube carrying a jet of steam, this jet of steam plays into a conicalshaped piece of sheet iron, (Z, attached to the sides a, a,

a, a, by the brackets 0, 0. This jet of steam causes the gases to bedrawn with great ve locity up the chimney in the direction of thearrows. Fig. 2, is a somewhat similar mode with this difference; it hasnot the conical shaped piece, (Z, but has around it a casing at e, 6,four holes, three of which are seen 9, g, g, which communicate with thechimney, the jet of steam h, which comes through the steam pipe himpinges against the conical sides and causes the air to rush in at thepipe Z1? which communicates with the flue (better seen at Fig. 8, Fig.2, being only a sectional view) the underneath part i, is closed up by aplate. These instruments Figs. 1 and 2, can be used for the removal ofair or gases in any situation. In Figs. 3 and at will be seen two othermodes for accomplishing the same results. It is very similar to thatattached to my patent for the smelting of iron and other ores.

Fig. at, represents the upper part of a ventilating shaft for a mine orthe end of the shaft or chimney of a furnace. It is closed at the top at70, and its exit is at Z. There is attached to the end of this pipe Z,the eXhauster.

In Fig. 5, a, a, are the leaves of the fan; 6, the shaft; 0, 0, thebearings, and (Z, the driving pulley which is moved by a strap by anymotion power. This fan or exhauster is seen better on a larger scale,Fig. 6, being a front view and one leaf 6, only shown there being twelvein number, one being placed on each of the dotted lines. This leaf isattached to an iron plate 7", (the letters of reference to Figs. 6 and 7are the same to prevent confusion). The piece of iron is reunited to theplate f, and the leaf is bent to curve so as to lap over the plate 7",and when riveted to the piece 9, touches the back plate 2', i, which isdished and forms a shape as seen in Fig. 7. The leaf is riveted by therivets m) to this dished shape piece to keep it steady. 70, 7c, is theshaft which turns this fan or eX- hauster, this shaft passes through thecast iron boss m, and the bolts a, 11,, attach it firmly to the disk Bygiving a rapid rotary motion to this exhauster a very sharp draft isproduced through the pipe 0, in the direction of the arrows, and thegases are removed. Fig. 3, represents the same fan acting vertically onthe upper part of a shaft (but I prefer its being the reverse way as inFig. 5), a, a, being the sides; I), the fan or exhauster; c, 0, thebearings; d, a cone turned on the shaft to prevent its lowering. Thereis no support represented in the plate holding the bearings as that iseasily conceived and may be built in any convenient way. The exhausterdiffers from that patented in my former patent alluded to by having adished shape back plate 71, which allows the gases more easily to escapeand increases the power of the ventilator or exhauster.

Fig. 8, is a view of Fig. 2 .shown in perspective that its outer formmay be seen, h the steam pipe and h the pipe to the chimney; e, theouter casing which surrounds the casing a.

Fig. 9, represents a chimney or tube a. It will be seen that the jet ofair or steam I), must be placed higher up the tube, and by thisarrangement a number of chimneys or ventilating inlets may be placedleading into it as seen at c, 0, 0, 0, and by such means a jet of air orsteam will exhaust more air or gases than if only one feeding pipe wasintroduced. In Fig. 8, the dotted part e shows another inlet tube placedopposite the one h. Another benefit will be derived from having anarrangement similar to Fig. 9, viz., suppose the gases to be exhaustedare very much heated or poisonous they may be cooled or diluted by theadmission of air by opening the lower tubes, of course these tubes musthave a slide valve to each, to shut off or open communications as may bedesired.

In Fig. 10, a, represents the chimney on board the boat; Z), 6, twopieces shaped as seen; 0, the exit pipe of the chimney, which is a verylittle larger than the chimney pipe (1. The cap, (Z, is made to slide upand down the pipe, 6, that its height may be adjusted. By blowing intothe pipe, 0, a very great draft is given.

Fig. 11, is a mere shelved opening at the top of the chimney, having acone fixed as seen at, a, the jet plays a small distance from it. Fig.12 is another cut for the top of the chimney; a, represents the chimney,b the cut, 0 the opening which should be a little larger than thechimney. Fig. 18 is a form which is placed at the top of the chimney toeffect the same object.

Fig. 1 1, Sheet 2, is a sectional view of Fig. 15, and is for differentventilating purposes. The exhaust is quadrupled, thus enabling you toventilate four separate places (the different decks of a man of war forexample) at one and the same time and with the same jet of steam or air.In this figure 29, is the pipe through which the jet of steam passes,and as it passes out at the nozzle, 9, it creates an exhaust in the twolower openings 1, 1", taking up the air and passing into the conicalshaped end, 8, thus increasing the strength of the exhaust in the upperopenings 23, t. Fig. 16, is another method, but more particularlyadapted to large chimneys, but still acting on the same principle; u isthe chimney; '1), a tube inserted in it, which should extend down asnear the furnace as the heat will admit of. This tube is one half thediameter of the chimney in which it is placed.

Fig. 1'7 is a simple cap to be placed on the top of the chimney. It issimilar to Figs. 11, 12 and 13 in Sheet 1, with this difference, thatthe upper part w must be two and a half times the height of the spacemarked with the red line, and the nozzle, q, must be below the chamberw, say three fourths the diameter of thechamber.

What I claim and desire to secure by Letters Patent is The applicationto ships, mines, buildings, &c., of a jet of steam or air in a shaft orflue, in connection with the fan and director, when the said devices areconstructed and arranged as specified in the manner and for the purposeset forth.

In testimony whereof I the said ROBERT WILLIAM SIEVIER hereto subscribemy name in the presence of witnesses whose names are hereto subscribedon the seventh day of May A. D. 1859.

R. W. SIEVIER.

